What is the largest city in Oklahoma by population?

Excuse me, could you possibly shed some light on a question that's been puzzling me? I'm curious to know, what exactly is the largest city in Oklahoma when it comes to its population? I've heard a few names mentioned, but I'm really not sure which one takes the crown. Could you please clarify this for me, and possibly provide some insight into the demographics of this particular city as well? Thank you so much for your assistance.